CN103085487A - Imaging box chip with self-adaptive contacts and imaging box and self-adaptive method of imaging box chip - Google Patents
Imaging box chip with self-adaptive contacts and imaging box and self-adaptive method of imaging box chip Download PDFInfo
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- CN103085487A CN103085487A CN201110344995XA CN201110344995A CN103085487A CN 103085487 A CN103085487 A CN 103085487A CN 201110344995X A CN201110344995X A CN 201110344995XA CN 201110344995 A CN201110344995 A CN 201110344995A CN 103085487 A CN103085487 A CN 103085487A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32561—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device using a programmed control device, e.g. a microprocessor
- H04N1/32598—Bus based systems
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
- G03G21/1875—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit provided with identifying means or means for storing process- or use parameters, e.g. lifetime of the cartridge
- G03G21/1878—Electronically readable memory
- G03G21/1882—Electronically readable memory details of the communication with memory, e.g. wireless communication, protocols
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17526—Electrical contacts to the cartridge
- B41J2/1753—Details of contacts on the cartridge, e.g. protection of contacts
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- Computer Vision & Pattern Recognition (AREA)
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- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Ink Jet (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
The invention discloses an imaging box chip with self-adaptive contacts. The imaging box chip comprises a storage unit, a communication interface unit, and a contact automatic distinguishing and allocation module, wherein the contact automatic distinguishing and allocation module comprises a signal obtaining unit, a contact automatic distinguishing module and a contact allocation locking module. The contact allocation locking module is connected with the contact automatic distinguishing module, a function, corresponding to a static contact, of each contact is chosen in whole series of contact functions, and each contact is locked. The invention further discloses an imaging box including the imaging box chip and a self-adaptive method of the imaging box chip of the self-adaptive contacts. The chip is flexible in pin function, the chip can be self-adaptive to functions of terminals of the chip according to upgrade of a printer main body, the problems that due to changes of terminals of a main machine, the contacts of the chip must be changed, a circuit board is redesigned, and otherwise the chip cannot be used are avoided, generality of the chip is effectively increased, and production cost is reduced.
Description
Technical field
The present invention relates to a kind of imaging box chip with the self adaptation contact, imaging cartridge and adaptive approach thereof.
Background technology
The kind of imaging device is various, and as printer, duplicator and scanner etc., imaging device generally comprises imaging main body and imaging cartridge, and imaging cartridge is all to be removably mounted on the imaging main body at present.imaging cartridge such as print cartridge, cartridge etc., wherein be mounted with the recording materials for imaging, the imaging main body adopts imaging cartridge to form image on the dielectric materials such as paper, generally all be fixedly installed chip on imaging cartridge, be called imaging box chip or ink box chip, this ink box chip generally is arranged on imaging cartridge, on an imaging cartridge circuit board, this circuit board is exactly mainly the peripheral circuit of this chip and some these chips, this chip generally comprises memory cell and communications interface unit, the kind of cell stores ink, ink cartridge build date data, number of print pages, the ink cartridge sequence number, the information such as residue Mo Liang, the imaging main body is read and write this memory cell by communications interface unit, the imaging main body is read and write the memory cell of imaging box chip and is all adopted following dual mode at present:
1, asynchronous communication means, the physical interface of this communication mode comprises following holding wire: power supply terminal VCC, be used for being connected with the voltage source signal line, clock CLK terminal is used for being connected with the clock cable that synchronised clock is provided, reseting terminal RST, be used for being connected with the reseting signal line that reset signal is provided, data terminal I/O, be used for and chip and imaging device between the data wire of interactive information be connected, and ground terminal GND totally 5 holding wires.
2, iic bus also claims the I2C bus, is a kind of multidirectional control bus, and also there is power supply terminal VCC in its physical interface, and clock signal terminal SCL and data terminal SDA and ground terminal GND be totally 4 holding wires.
It is to be provided with to electrically contact part on chip that the imaging main body adopts top two kinds of communication protocols to read and write the Main physical connection to ink box chip, the contact of namely often saying.The imaging main body is provided with the imaging device main body side terminal that corresponds respectively to these contacts, when print cartridge is installed on the imaging device main body, the device side terminal of imaging device main body and the contact on ink box chip electrically contact, in order to can carry out the transmission of data between ink box chip and imaging device.
Have in the market on the imaging box chip of these terminals, these contacts are the fixed function contact, as power supply, clock, reset line, ground wire, data etc., namely these contacts all are fixed as a certain specific function at chip in links such as design, processing, uses and can not change again.
Fixedly the electric shock design cost is low, and the contact distribution of chip and the contact of corresponding device distribute corresponding, more directly perceived one by one, and can satisfy the function needs of ink box chip.but because the contact function of ink box chip is solidified, solidify the contact, on using, reduced chip the flexibility of circuit board layouts, particularly for a kind of chip, the equipment that the contact of wanting corresponding different distributes, at this moment just must design the circuit board of the multiple contact distribution of corresponding different contacts distribution apparatus, originally be a kind of chip, but because distributing different, the contact of distinct device extends a lot of different chip products, give the production and processing of product, production management and product inventory all increase a lot of problems, limited the chip convenience in the use that corresponding multiple contact distributes,
for example, the print cartridge that uses on printer material consumption or selenium drum chip, the printer manufacturer is within a quite long stage, the printer of producing is corresponding the identical consumable chip of same all, and along with printer production firm new model printer is constantly released, the ink box chip upgrading that printer is corresponding but often lags behind, chip occurring does not change, and the phenomenon that chip contacts is arranged and often changed along with the variation of print apparatus side terminal, because chip contacts has before all been fixed function, if the Functional change of the device side terminal of printer, even chip before writes new data, restriction due to pin function, can not re-use, so when using the chip of old type tube, change by the redesign circuit board printer that contact position adapts to new model, so just, a large amount of different contact chip stocks have been caused, produce more corresponding problems on management and cost.
Summary of the invention
The present invention is directed in the imaging devices such as current printer imaging box chip in process of production, some problems of producing on management and cost propose a kind of imaging box chip with the self adaptation contact and provide a kind of method that the contact is identified so that imaging box chip is completed adaptation function.
the present invention in order to realize the technology that its goal of the invention adopts is: a kind of imaging box chip with the self adaptation contact, comprise one group of movable contact, described movable contact contacts with stationary contact on being arranged on the imaging main body, described imaging box chip contacts with stationary contact by described movable contact with the imaging main body realizes communication connection, has complete series contact function in each contact in described movable contact, also comprise the contact identification module, described contact identification module is determined the concrete function of each contact above-mentioned one group of movable contact according to the signal that obtains from described movable contact.
Further, in the above-mentioned imaging box chip with the self adaptation contact: the automatic identification module in described contact comprises signal acquiring unit, the automatic identification module in contact and contact distribution locking module;
Described signal acquiring unit is connected with described movable contact, when movable contact contacts with stationary contact, obtains the electric signal characteristic of each stationary contact;
The automatic identification module in described contact is connected with described signal acquiring unit, receives the electric signal characteristic of each contact that is obtained by described signal acquiring unit, draws function corresponding to each stationary contact on the imaging main body;
Described contact distributes locking module to be connected with the automatic identification module in described contact, selects function corresponding to described stationary contact and locks in the complete series contact function that has in each contact.
Further, in the above-mentioned imaging box chip with the self adaptation contact: locking module is distributed in described contact, comprise locking EEPROM and contact distribution performance element, described locking EEPROM carries out read and write by the automatic identification module in described contact, the automatic identification module in described contact with the contact function that automatically identifies by write EEPROM with the stationary contact function locking of correspondence on corresponding stationary contact, described contact distributes performance element to read described locking EEPROM, carries out and selects to lock in the complete series function of contact appointed function in EEPROM.
Further, in the above-mentioned imaging box chip with the self adaptation contact: complete series contact function comprises corresponding function on each movable contact.
Further, in the above-mentioned imaging box chip with the self adaptation contact: described contact identification module comprises memory cell, signal acquiring unit, the automatic identification module in contact, locking EEPROM, contact distribution performance element;
Described cell stores has the data corresponding with the imaging device main frame upper contact function distribution of various models;
Described signal acquiring unit is connected with described movable contact, when movable contact contacts with stationary contact, obtains the electric signal characteristic of each stationary contact;
The automatic identification module in described contact is connected with described signal acquiring unit, receives the electric signal characteristic of each contact that is obtained by described signal acquiring unit, draws function corresponding to each stationary contact on the imaging main body; And call data corresponding to corresponding contact function distribution in described memory cell according to the contact position of different definition, write described locking EEPROM;
Described contact distributes performance element to read described locking EEPROM, carries out and selects to lock in the complete series function of contact appointed function in EEPROM.
further, in the above-mentioned imaging box chip with the self adaptation contact: also comprise the internal electric source acquisition cuicuit, described internal electric source acquisition cuicuit is connected with the internal electric source ground terminal with the internal electrical source of described imaging box chip respectively, comprise with each contact be connected to described imaging box chip the internal electrical source one group of first wire group and each contact is connected to one group of second wire group of the internal electric source ground terminal of described imaging box chip, be arranged in the first wire group and the second wire group the one way conducting device on every wire, on described the first wire group, described one way conducting device is from the contact to the internal electrical source conducting of described imaging box chip, on described the second wire group, described one way conducting device is from the internal electrical seedbed end of imaging box chip to the tip side conducting.
Further, in the above-mentioned imaging box chip with the self adaptation contact: described one way conducting device is diode, on described the first wire group, the P utmost point of described diode connects described contact, the N utmost point connects the internal electrical source of described imaging box chip, on described the second wire group, the N utmost point of described diode connects described contact, and the P utmost point connects the internal electrical seedbed end of described imaging box chip.
The present invention also provides a kind of imaging cartridge, it is characterized in that, includes above-mentioned arbitrary imaging box chip.
The present invention also provides a kind of the above adaptive approach with the imaging box chip of self adaptation contact, comprises the steps:
Steps A, movable contact is contacted with stationary contact, the automatic identification module in contact obtains the electric signal characteristic of each contact;
Step B, the automatic identification module in contact carry out the contact according to each contact electric signal characteristic and automatically identify;
The function of step C, the described automatic identification of selective basis step B in the complete series function of each contact, and this contact is fixed as this function.
Wherein: comprise the following steps in described step B:
What at first power on is the contact of power line; Second normal level be high level be the contact of reseting signal line; What signal frequency was the highest is the contact of clock line, the signal frequency that signal frequency is touched lower than clock higher than the signal frequency of power contact be the contact of data wire, being in all the time low level is the contact of ground wire.
Perhaps:
What at first stablize high level is the power line contact; It is secondly stable that what power on is the contact of reseting signal line; What become high level is the contact of clock line again; What become high level after the signal of clock line contact becomes high level is data line signal again; All the time all being in low level is the contact of ground wire.
Perhaps:
What at first stablize high level is the power line contact; It is secondly stable that what power on is the contact of reseting signal line; What become high level is the contact of data wire again; What become high level after the signal of data line contact becomes high level is the clock line signal again; All the time all being in low level is the contact of ground wire
Perhaps:
What at first stablize high level is the power line contact; All the time all being in low level is the contact of ground wire; In when beginning communication, when being high level in the contact of data-signal and clock cable, step-down and to make the contact of the signal that communication formally begins be data line contact at first; The another one contact is the clock cable contact.
Perhaps:
Step B00, in advance described imaging box chip institute can contact function corresponding to adaptive all types chip the be distributed data of correspondence deposit different memory blocks in;
Step B01, know it is any class chip according to the contact electric signal characteristic that obtains, and call data and the main-machine communication of described memory block.
Further, in above-mentioned method: described step C comprises step by step following:
Step C01, the automatic identification module in described contact are written to contact distribution lock register EEPROM with the position of each contact of step B identification;
Step C02, contact distribution module be according to the information in EEPROM, makes chip movable contact and inside have corresponding contact corresponding function in the function of complete series contact.
Chip pin function of the present invention is flexible, can be according to the upgrading of printer main body and its terminal function of self adaptation, avoided redesigning circuit board because the change of main frame terminal causes chip contacts to change, otherwise the problem that just can't use, effectively increased the versatility of chip, reduced production costs.
Simultaneously, chip data can be designed to different data structures, when printer contacts not simultaneously, chip is except each contact definition that can adaptively changing oneself, can also call according to the contact position of different definition different memory cell corresponding with it, realize the purpose of the different model printer of a chip corresponding different contacts function.Make the versatility of chip obtain maximizing and satisfy, reduce stock and the management cost of chip.
Below by with accompanying drawing, technical scheme of the present invention being carried out comparatively detailed description in conjunction with specific embodiments.
Description of drawings
Fig. 1 is the power supply circuits of imaging box chip of the present invention before identification contact function and distribution.
Fig. 2 is that contact of the present invention is identified the distribution module structural representation automatically.
Fig. 3 is flow chart of the present invention.
Fig. 4 is the embodiment of the present invention 1 signal schematic representation.
Fig. 5 is SCL and SDA signal schematic representation in the embodiment of the present invention 2.
Fig. 6 is self-identifying process flow diagram flow chart in the embodiment of the present invention 3.
The specific embodiment
As shown in Figure 1, the present embodiment is a kind of imaging box chip with the self adaptation contact, this chip is arranged on the imaging cartridge face, several contacts and imaging main body by the surface communicate, the communication protocol of main flow has two kinds to be respectively bus communication protocol and I2C bus protocol at present, for bus communication protocol, 5 contacts are arranged, respectively Vcc, CLK, RST, GND and I/O, only have 4 effective contacts for the I2C bus protocol, be respectively Vcc, GND, SDA and SCL, the imaging box chip of the present embodiment comprises memory cell and communications interface unit as shown in Figure 1.Cell stores has described imaging cartridge performance data.Communications interface unit comprises one group of movable contact, and movable contact contacts with stationary contact on being arranged on the imaging main body, receives the signal of telecommunication on imaging main body stationary contact or sends information to the imaging main body.In addition, the present embodiment is compared with other imaging box chip, also comprises contact automatically identification and distribution module in the imaging box chip of the present embodiment, and in all movable contacts, each contact has complete series contact function; As shown in Figure 2, in other words, inner at the imaging box chip of the present embodiment, each movable contact has designed all contact functions, by a selector switch, function is selected, in case when choosing a function and being assigned on a contact, just can be fixed the middle use of working afterwards.Contact identification automatically comprises signal acquiring unit, the automatic identification module in contact and contact distribution locking module with distribution module; Signal acquiring unit is connected with communications interface unit, the electric signal characteristic of each stationary contact that the obtaining communication interface unit is connected; The automatic identification module in contact is connected with signal acquiring unit, receives the electric signal characteristic of each contact that is obtained by signal acquiring unit, draws function corresponding to each stationary contact on the imaging main body; The contact distributes locking module to be connected with the automatic identification module in described contact, selects function corresponding to described contact and locks in the complete series contact function that has in each contact.The contact distributes the form of locking module to have many, be illustrated in figure 2 as distribution locking module in contact in the present embodiment, comprise locking EEPROM and contact distribution performance element, locking EEPROM is read by the automatic identification module in contact, described contact distributes performance element to read described locking EEPROM, carries out and selects to lock in the complete series function of contact appointed function in EEPROM.Fig. 2 is automatically identification and distribution module of contact, and the automatic identification module in contact is when externally first high level of contact arrives, and the power supply of high level pin is started working thus, until last high level step-down power cut-off.Contact identification is automatically monitored all pins of chip with distribution module and identification judgement automatically, in general, first high level pin corresponding power line is because insure chip operation most, safest pattern is at first to chip power supply, and secondly other operations with chip are just arranged.Reseting signal line is second holding wire that works, because if reset line is when invalid, is invalid to other operations of chip, so must allow reseting signal line effective before to chip operation again.Clock signal and data-signal differ also clearly, and at first data-signal does not have the periodicity of clock signal strong, and secondly data-signal does not have the frequency of clock signal high.Each is according to above difference, and contact identification automatically both can be realized with hardware by logic circuit with distribution module, also can by software programming, judge identification automatically by program.After the contact is determined, namely need not again judge in operation afterwards to adapt to the contact, but be fixed up in the contact that the machine of going up is first determined.For example for the situation of Fig. 2, it is five EEPROM positions that locking EEPROM hypothesis is distributed in the contact, when chip is not also gone up machine, five EEPROM positions are 00000, after going up for the first time machine, this external contact of judgement is the RESET contact, and the automatic identification module in contact is written as 01000 with this five-digit number automatically, and by the EEPROM persistence; When next time, chip power used, because five-digit number is not 0 entirely, second was 1, and chip need not again automatically be identified and automatically this contact is connected on RESET.Other pin contacts in like manner design.
In the present embodiment, also comprise the internal electric source acquisition cuicuit, as shown in Figure 1, when the internal electric source acquisition cuicuit joins on the imaging main body at imaging box chip, movable contact contacts with stationary contact, at this moment, because imaging box chip is not also identified power supply signal on movable contact, therefore, before identification is touched, can't become the upper electric energy that obtains of touching of communication interface, only have by this power supply acquisition cuicuit, with the VDD-to-VSS in stationary contact respectively with imaging cartridge in power supply be connected to the ground, imaging cartridge is got electricly carries out the contact automatically identification and contact function are fixed.
being illustrated in figure 1 as the internal electric source acquisition cuicuit is connected with the internal electric source ground terminal with the internal electrical source of imaging box chip respectively, comprise with each contact be connected to imaging box chip the internal electrical source one group of first wire group and each contact is connected to one group of second wire group of the internal electric source ground terminal of imaging box chip, be arranged in the first wire group and the second wire group the diode on every wire, on described the first wire group, the P utmost point contact point of diode, the N utmost point connects the internal electrical source of imaging box chip, on the second wire group, the N utmost point contact point of diode, the P utmost point connects the internal electrical source of imaging box chip.Here in other embodiments, diode can be also other one-way conduction element, as long as unidirectional direction is that the direction of the one-way conduction part on second group of wire is to flow to the contact direction from imaging cartridge power source ground wire direction from the movable contact upper reaches to the power end of imaging box chip on the first wire group.
Be illustrated in figure 1 as the simplest a kind of chip power supply mode, be that any one pin all is connected with chip internal bulk supply power supply by a diode, when the outside does not determine that any one pin of function is high level, this pin all can be by the power supply of diode pair internal electric source, and due to the unidirectional function of supplying power of diode, on other pin without any impact.In case chip internal power supply beginning, namely start working with distribution module in contact identification automatically, and pin function is automatically identified and locked.
In like manner, each external terminal also diode by separately is connected with the chip internal ground wire, but diode direction and the diode opposite direction that is connected internal power cord.Like this, when any one pin of external terminal was low level, inner ground wire all can be by the diode that is connected with the low level pin to external discharge, and both the discharge of Power supply and ground wire forms a work loop, guarantees the normal operation of chip.
In the present embodiment, analysis and processing unit is to complete the formant of self adaptation contact, and it is one and has intelligentized unit, draws function corresponding to each movable contact in the imaging main body.
In the present embodiment, during chip real work for the first time, except normal basic chips function, self adaptation pin function recognition function is arranged additionally, under normal protocol, what at first power on is power supply, so can fix lower power pin; If reset line is arranged, particularly low level resets when effective, and as shown in Figure 4, the pin when second normal level is high is reset line, because reset line all the other holding wires when low are all inoperative, so reset line is necessary for height before the chip life's work; The operating frequency of clock line will be higher than data wire, so also clock and data wire can be fixed.Chip internal is joined EEPROM accordingly, can corresponding functional line fixed allocation on corresponding pin, not needed again self adaptation identification in use afterwards by the Data Control of EEPROM, and is stable to guarantee that chip uses.Also can accept after one group of complete data traffic signals of main frame fixing pin function again by chip, guarantee the correctness of pin function.
In the present embodiment the flow chart of self adaptation contact as shown in Figure 3, concrete steps are as follows:
Steps A, movable contact is contacted the electric signal characteristic of the automatic identification module in contact with stationary contact;
Step B, the automatic identification module in contact carry out the contact according to each contact electric signal characteristic and automatically identify;
Step C, in the complete series function of each contact selective basis step B the automatic function of identification, and this contact is fixed as this function.
In the present embodiment, step B is crucial, and only B could be fixed on function on corresponding contact after correctly identifying the function of each stationary contact in steps.
The below is some flow processs that the contact is identified.
Fig. 4 is the oscillogram of a kind of communication protocol chip when just having started working, can see, that at first stablize high level is power supply VCC, and this moment, adaptive chip was fixed VCC, here stable powering on after referring to power on is stable high level always, do not have fluctuation or multiple-pulse.Secondly stable what power on is reseting signal line, i.e. the RST line; At first the EPSON printer send data zero, that namely become high level is clock line CLK again, what the back uprised again is the I/O line, being always low is after the ground wire GND. former positions that also can be sent by main frame by chip, perhaps accepted one group complete or near fixing again corresponding pin function after complete main frame waveform.The frequency of clock model is also a judgement parameter higher than the frequency of data signal line certainly.
In a word, the present invention is the ink box chip of a kind of self adaptation contact function, this ink box chip is when manufacturing is dispatched from the factory, each contact has complete series contact function, but a certain concrete function is not fixed on a certain contact, only when the client is arranged on print cartridge on imaging device, the peripheral electric signal characteristic when the chip automatic decision is installed first, and automatically corresponding contacts is fixed as corresponding function according to these electric signal characteristics, and in use afterwards, this function is fixed up.For chip is provided convenience when formally using.
Concrete, in the normal serial communication chip of known technology, corresponding serial communication protocol has been fixed the function definition of each pin of chip, and fixed the messaging parameter of the communication protocol under corresponding pin function definition, as the signal of telecommunication relation between power supply electrifying, clock, data wire and reset line etc.We can be according to communication protocol, and judge the function of the pin in waveform according to corresponding waveform relationship. the chip of the self adaptation contact function in the embodiment of the present invention also can be judged by the method the pin function of main frame respective terminal, and by inner fixing and locked this function of ink box chip, fix this function in use afterwards, make the general pin function of chip fixedly become the chip of fixing pin function.Also can be in some occasion, the use of chip is fixed function not all the time, each contact function of equal self adaptation during each and main frame cooperation, host matching, obvious with it, also can be used on selenium drum chip.
In the present embodiment, chip data is designed to different data structures, when printer contacts not simultaneously, chip is except each contact definition that can adaptively changing oneself, can also call according to the contact position of different definition different memory cell corresponding with it, realize the purpose of the different model printer of a chip corresponding different contacts function.
In normal serial communication chip, corresponding serial communication protocol has been fixed the function definition of each pin of chip, and fixed the messaging parameter of the communication protocol under the definition of corresponding pin function, as the signal of telecommunication relation between power supply electrifying, clock, data wire and reset line etc., the user can be according to communication protocol, and judge the function of the pin in waveform according to corresponding waveform relationship.The chip of the self adaptation contact function in the embodiment of the present invention also can be judged by the method the pin function of main frame respective terminal, and by inner fixing and locked this function of ink box chip, fix this function in use afterwards, make the general pin function of chip fixedly become the chip of fixing pin function.
Annexation between each pin of chip except chip fixed function relation originally, is designed to the function of equivalent current supply full-bridge rectification in addition, namely all can be positive pole and negative pole between any two pins.As long as it is low level that a pin is arranged, just can guarantee that any one pin all can to the chip normal power supply, make the chip normal operation when high level arrives.
During chip real work for the first time, except normal basic chips function, self adaptation pin function recognition function is arranged additionally, under normal protocol, what at first power on is power supply, so can fix lower power pin; If reset line is arranged, particularly low level resets when effective, and the pin when second normal level is high is reset line as shown in Figure 4.Because when reset line is low, all the other holding wires are all inoperative, so reset line is necessary for height before the chip life's work; The operating frequency of clock line will be higher than data wire, so also clock and data wire can be fixed. chip internal is joined EEPROM accordingly, can be by the Data Control of EEPROM, with corresponding functional line fixed allocation on corresponding pin, do not need again self adaptation identification in use afterwards, stable to guarantee that chip uses. also can accept after one group of complete data traffic signals of main frame fixing pin function again by chip, guarantee the correctness of pin function.Stable judgement is easily judgement on the signal of telecommunication is realized, data signal generally is used in power-on time in a period of time and power down time and pulse number and judges.Fig. 4 for example, VCC is power supply, so powering on and only having a pulse in the power down time period, power on along being in pulse, lower edge is power down; RESET wants effectively in whole power-on time section, so umber of pulse only is less than VCC; The CLK bits per inch is according to all having, so umber of pulse is maximum during powering on.Data bit is not all to change at every turn, so umber of pulse is less than CLK, but far more than RESET.So stable can only refer to VCC and RESET stable, CLK and I/O contact are changing always.
As shown in Figure 4, when just having started working for a kind of communication protocol chip, that at first stablize high level is power supply VCC, and this moment, adaptive chip was fixed VCC, and secondly stable what power on is reseting signal line, i.e. the RST line; At first send data zero as the EPSON printer, that namely become high level is clock line CLK again, and what the back uprised again is the I/O line, and being always low is ground wire GND.After the former position that also can be sent by main frame by chip, perhaps accepted one group complete or near fixing again corresponding pin function after complete main frame waveform. the frequency of clock model is also a judgement parameter higher than the frequency of data signal line certainly.
IIC (I2C) communication protocol as shown in Figure 5, when the communication beginning, be when high at data and clock cable, at first step-down and to make the holding wire that communication formally begins be data wire, at clock line when being high, data wire means sign off by low uprising. when once complete sign off, the EEPROM of adaptive chip inside fixes SCL clock line and SDA data wire, and fixing use the in use afterwards. after the former positions that also can be sent by main frame by chip, perhaps accepted one group complete or near fixing again corresponding pin function after complete main frame waveform.The frequency of clock model is also a judgement parameter higher than the frequency of data signal line certainly.As shown in Figure 5.
Chip data can be designed to different data structures, when printer contacts not simultaneously, chip is except each contact definition that can adaptively changing oneself, can also call according to the contact position of different definition different memory cell corresponding with it, realize the purpose of the different model printer of a chip corresponding different contacts function.
For example the chip of a self adaptation contact is followed IIC communication protocol, there are three of A, B, C the data storage area of this chip, corresponding three kinds of chip types, and namely this chip can self adaptation three types chip, when supposing that chip has just been started working, according to IIC communication protocol, in four communication lines, it is high level that three circuits must be arranged, a ground wire is low level, add contact 1, contact 2, contact 3 to be high level, contact 4 be low level, this moment chip can to automatically identify contact 4 be ground wire; When the IIC agreement begins to communicate by letter, at clock line SCL when being high, data wire SDA at first step-down is the communication beginning, the circuit of next step-down is clock line SCL., supposes at first step-down of contact 1, and step-down is followed in contact 2, chip can identify contact 1 and be data wire SDA, contact 2 is power supply VCC for clock line SCL. contact 3, and this moment, chip was thought first kind chip, then can call data and the main-machine communication of memory block A.
Suppose at first step-down of contact 2, step-down is followed in contact 1, and chip can identify contact 2 and be data wire SDA, and contact 1 is clock line SCL.Contact 3 is power supply VCC, and this moment, chip was thought the Second Type chip, called data and the main-machine communication of memory block B.
Suppose at first step-down of contact 1, step-down is followed in contact 3, and chip can identify contact 1 and be data wire SDA, and contact 3 is power supply VCC for clock line SCL. contact 2, and this moment, chip was thought the 3rd type chip, called data and the main-machine communication of memory block C.Can analogize with this.
The below is the concrete steps of the present embodiment: as shown in Figure 6.
In advance deposit data structure corresponding to imaging box chip institute's adaptive all types chip of energy in different memory block; These data structures are described different stationary contacts and are arranged, the corresponding relation data structure of corresponding different memory cell.
Know it is any class chip according to the contact electric signal characteristic that obtains, and call data and the main-machine communication of memory block.
For this reason, memory need to be set in imaging box chip, the contact identification module in the present embodiment comprises memory cell, signal acquiring unit, the automatic identification module in contact, locking EEPROM, contact distribution performance element;
Cell stores has to be described different stationary contacts on imaging device main frame from various models and arranges, the corresponding relation data structure of corresponding different memory cell;
Signal acquiring unit is connected with described movable contact, when movable contact contacts with stationary contact, obtains the electric signal characteristic of each stationary contact;
The automatic identification module in contact is connected with described signal acquiring unit, receives the electric signal characteristic of each contact that is obtained by signal acquiring unit, draws function corresponding to each stationary contact on the imaging main body; And call corresponding corresponding relation data structure in memory cell, write lock-out EEPROM according to the contact position of different definition;
The contact distributes performance element to read locking EEPROM, carries out and selects to lock in the complete series function of contact appointed function in EEPROM.
Can find out to have adaptive ability as the contact of fruit chip from above example, can design easily the chip of oneself, a kind of chip is extended in several chip products. reduced the production management cost.
Claims (16)
1. imaging box chip with the self adaptation contact, comprise one group of movable contact, described movable contact contacts with stationary contact on being arranged on the imaging main body, described imaging box chip contacts with stationary contact by described movable contact with the imaging main body realizes communication connection, it is characterized in that: have complete series contact function in each contact in described movable contact, also comprise the contact identification module, described contact identification module is determined the concrete function of each contact described one group of movable contact according to the signal that obtains from described movable contact.
2. the imaging box chip with the self adaptation contact according to claim 1 is characterized in that: described contact identification module comprises that signal acquiring unit, the automatic identification module in contact and contact distribute locking module;
Described signal acquiring unit is connected with described movable contact, obtains the electric signal characteristic of each stationary contact;
The automatic identification module in described contact is connected with described signal acquiring unit, receives the electric signal characteristic of each contact that is obtained by described signal acquiring unit, draws function corresponding to each stationary contact on the imaging main body;
Described contact distributes locking module to be connected with the automatic identification module in described contact, selects function corresponding to described stationary contact and locks in the complete series contact function that has in each contact.
3. the imaging box chip with the self adaptation contact according to claim 2, it is characterized in that: locking module is distributed in described contact, comprise locking EEPROM and contact distribution performance element, described locking EEPROM carries out read and write by the automatic identification module in described contact, the automatic identification module in described contact with the contact function that automatically identifies by write EEPROM with the stationary contact function locking of correspondence on corresponding stationary contact, described contact distributes performance element to read described locking EEPROM, carry out and select to lock in the complete series function of contact appointed function in EEPROM.
4. the imaging box chip with the self adaptation contact according to claim 1 is characterized in that: complete series contact function comprises corresponding function on each movable contact.
5. the imaging box chip with the self adaptation contact according to claim 1 and 2 is characterized in that: described contact identification module comprises that memory cell, signal acquiring unit, the automatic identification module in contact, locking EEPROM, contact distribute performance element;
Described cell stores has the data corresponding with the imaging device main frame upper contact function distribution of various models;
Described signal acquiring unit is connected with described movable contact, obtains the electric signal characteristic of each stationary contact;
The automatic identification module in described contact is connected with described signal acquiring unit, receives the electric signal characteristic of each contact that is obtained by described signal acquiring unit, draws function corresponding to each stationary contact on the imaging main body; And call data corresponding to corresponding contact function distribution in described memory cell according to the contact position of different definition, write described locking EEPROM;
Described contact distributes performance element to read described locking EEPROM, carries out and selects to lock in the complete series function of contact appointed function in EEPROM.
according to claim 1 to 4 described arbitrary imaging box chip with the self adaptation contact, it is characterized in that: also comprise the internal electric source acquisition cuicuit, described internal electric source acquisition cuicuit is connected with the internal electric source ground terminal with the internal electrical source of described imaging box chip respectively, comprise with each contact be connected to described imaging box chip the internal electrical source one group of first wire group and each contact is connected to one group of second wire group of the internal electric source ground terminal of described imaging box chip, be arranged in the first wire group and the second wire group the one way conducting device on every wire, on described the first wire group, described one way conducting device is from the contact to the internal electrical source conducting of described imaging box chip, on described the second wire group, described one way conducting device is from the internal electrical seedbed end of imaging box chip to the tip side conducting.
7. arbitrary imaging box chip with the self adaptation contact according to claim 5, it is characterized in that: also comprise the internal electric source acquisition cuicuit, described internal electric source acquisition cuicuit is connected with the internal electric source ground terminal with the internal electrical source of described imaging box chip respectively, comprise with each contact be connected to described imaging box chip the internal electrical source one group of first wire group and each contact is connected to one group of second wire group of the internal electric source ground terminal of described imaging box chip, be arranged in the first wire group and the second wire group the one way conducting device on every wire, on described the first wire group, described one way conducting device is from the contact to the internal electrical source conducting of described imaging box chip, on described the second wire group, described one way conducting device is from the internal electrical seedbed end of imaging box chip to the tip side conducting.
8. the imaging box chip with the self adaptation contact according to claim 6, it is characterized in that: described one way conducting device is diode, on described the first wire group, the P utmost point of described diode connects described contact, the N utmost point connects the internal electrical source of described imaging box chip, on described the second wire group, the N utmost point of described diode connects described contact, and the P utmost point connects the internal electrical seedbed end of described imaging box chip.
9. an imaging cartridge, is characterized in that, includes the described arbitrary imaging box chip of claim 1-14.
10. the adaptive approach of the imaging box chip with the self adaptation contact as claimed in claim 1, is characterized in that: comprise the steps:
Steps A, movable contact is contacted with stationary contact, the automatic identification module in contact obtains the electric signal characteristic of each contact;
Step B, the automatic identification module in contact carry out the contact according to each contact electric signal characteristic and automatically identify;
The function of step C, the described automatic identification of selective basis step B in the complete series function of each contact, and this contact is fixed as this function.
11. adaptive approach according to claim 10 is characterized in that: comprise the following steps in described step B::
What at first power on is the contact of power line; Second normal level be high level be the contact of reseting signal line; What signal frequency was the highest is the contact of clock line, the signal frequency that signal frequency is touched lower than clock higher than the signal frequency of power contact and reset contact be the contact of data wire, being in all the time low level is the contact of ground wire.
12. adaptive approach according to claim 10 is characterized in that: comprise the following steps in described step B:
What at first stablize high level is the power line contact; It is secondly stable that what power on is the contact of reseting signal line; What become high level is the contact of clock line again; What become high level after the signal of clock line contact becomes high level is data line signal again; All the time all being in low level is the contact of ground wire.
13. adaptive approach according to claim 10 is characterized in that: comprise the following steps in described step B:
What at first stablize high level is the power line contact; It is secondly stable that what power on is the contact of reseting signal line; What become high level is the contact of data wire again; What become high level after the signal of data line contact becomes high level is the clock line signal again; All the time all being in low level is the contact of ground wire.
14. adaptive approach according to claim 10 is characterized in that: comprise the following steps in described step B:
What at first stablize high level is the power line contact; Secondly all being in all the time low level is the contact of ground wire; Then in when beginning communication, when being high level in the contact of data-signal and clock cable, step-down and to make the contact of the signal that communication formally begins be data line contact at first; The another one contact is the clock cable contact.
15. adaptive approach according to claim 10 is characterized in that: comprise the following steps in described step B:
Step B00, in advance described imaging box chip institute can contact function corresponding to adaptive all types chip the be distributed data of correspondence deposit different memory blocks in;
Step B01, know it is any class chip according to the contact electric signal characteristic that obtains, and call data and the main-machine communication of described memory block.
16. the arbitrary adaptive approach according to claim 10 to described in 15 is characterized in that: described step C comprises step by step following:
Step C01, the automatic identification module in described contact are written to contact distribution lock register EEPROM with the position of each contact of step B identification;
Step C02, contact distribution module be according to the information in EEPROM, makes chip movable contact and inside have corresponding contact corresponding function in the function of complete series contact.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110344995.XA CN103085487B (en) | 2011-11-04 | 2011-11-04 | Imaging box chip with self-adaptive contacts and imaging box and self-adaptive method of imaging box chip |
| EP12844907.1A EP2725427B1 (en) | 2011-11-04 | 2012-09-13 | Imaging box chip with self-adaptive contact, imaging box and self-adaptive method |
| JP2014539220A JP5753322B2 (en) | 2011-11-04 | 2012-09-13 | Imaging cartridge chip with self-adaptive contacts, imaging cartridge, and self-adaptive method |
| PCT/CN2012/081325 WO2013063983A1 (en) | 2011-11-04 | 2012-09-13 | Imaging box chip with self-adaptive contact, imaging box and self-adaptive method |
| US14/162,071 US8830517B2 (en) | 2011-11-04 | 2014-01-23 | Imaging cartridge chip with self-adaptive contacts, imaging cartridge and self-adaptive method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110344995.XA CN103085487B (en) | 2011-11-04 | 2011-11-04 | Imaging box chip with self-adaptive contacts and imaging box and self-adaptive method of imaging box chip |
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| Publication Number | Publication Date |
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| CN103085487A true CN103085487A (en) | 2013-05-08 |
| CN103085487B CN103085487B (en) | 2015-04-22 |
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| CN201110344995.XA Active CN103085487B (en) | 2011-11-04 | 2011-11-04 | Imaging box chip with self-adaptive contacts and imaging box and self-adaptive method of imaging box chip |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8830517B2 (en) |
| EP (1) | EP2725427B1 (en) |
| JP (1) | JP5753322B2 (en) |
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| WO (1) | WO2013063983A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2014534917A (en) | 2014-12-25 |
| EP2725427B1 (en) | 2016-08-10 |
| EP2725427A4 (en) | 2014-06-11 |
| EP2725427A1 (en) | 2014-04-30 |
| US8830517B2 (en) | 2014-09-09 |
| CN103085487B (en) | 2015-04-22 |
| WO2013063983A1 (en) | 2013-05-10 |
| US20140132990A1 (en) | 2014-05-15 |
| JP5753322B2 (en) | 2015-07-22 |
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